# uncompyle6 version 3.2.3
# Python bytecode 3.6 (3379)
# Decompiled from: Python 3.6.8 |Anaconda custom (64-bit)| (default, Feb 21 2019, 18:30:04) [MSC v.1916 64 bit (AMD64)]
# Embedded file name: email\errors.py
"""email package exception classes."""


class MessageError(Exception):
    """Base class for errors in the email package."""

    pass


class MessageParseError(MessageError):
    """Base class for message parsing errors."""

    pass


class HeaderParseError(MessageParseError):
    """Error while parsing headers."""

    pass


class BoundaryError(MessageParseError):
    """Couldn't find terminating boundary."""

    pass


class MultipartConversionError(MessageError, TypeError):
    """Conversion to a multipart is prohibited."""

    pass


class CharsetError(MessageError):
    """An illegal charset was given."""

    pass


class MessageDefect(ValueError):
    """Base class for a message defect."""

    def __init__(self, line=None):
        if line is not None:
            super().__init__(line)
        self.line = line


class NoBoundaryInMultipartDefect(MessageDefect):
    """A message claimed to be a multipart but had no boundary parameter."""

    pass


class StartBoundaryNotFoundDefect(MessageDefect):
    """The claimed start boundary was never found."""

    pass


class CloseBoundaryNotFoundDefect(MessageDefect):
    """A start boundary was found, but not the corresponding close boundary."""

    pass


class FirstHeaderLineIsContinuationDefect(MessageDefect):
    """A message had a continuation line as its first header line."""

    pass


class MisplacedEnvelopeHeaderDefect(MessageDefect):
    """A 'Unix-from' header was found in the middle of a header block."""

    pass


class MissingHeaderBodySeparatorDefect(MessageDefect):
    """Found line with no leading whitespace and no colon before blank line."""

    pass


MalformedHeaderDefect = MissingHeaderBodySeparatorDefect


class MultipartInvariantViolationDefect(MessageDefect):
    """A message claimed to be a multipart but no subparts were found."""

    pass


class InvalidMultipartContentTransferEncodingDefect(MessageDefect):
    """An invalid content transfer encoding was set on the multipart itself."""

    pass


class UndecodableBytesDefect(MessageDefect):
    """Header contained bytes that could not be decoded"""

    pass


class InvalidBase64PaddingDefect(MessageDefect):
    """base64 encoded sequence had an incorrect length"""

    pass


class InvalidBase64CharactersDefect(MessageDefect):
    """base64 encoded sequence had characters not in base64 alphabet"""

    pass


class HeaderDefect(MessageDefect):
    """Base class for a header defect."""

    def __init__(self, *args, **kw):
        super().__init__(*args, **kw)


class InvalidHeaderDefect(HeaderDefect):
    """Header is not valid, message gives details."""

    pass


class HeaderMissingRequiredValue(HeaderDefect):
    """A header that must have a value had none"""

    pass


class NonPrintableDefect(HeaderDefect):
    """ASCII characters outside the ascii-printable range found"""

    def __init__(self, non_printables):
        super().__init__(non_printables)
        self.non_printables = non_printables

    def __str__(self):
        return ("the following ASCII non-printables found in header: {}").format(
            self.non_printables
        )


class ObsoleteHeaderDefect(HeaderDefect):
    """Header uses syntax declared obsolete by RFC 5322"""

    pass


class NonASCIILocalPartDefect(HeaderDefect):
    """local_part contains non-ASCII characters"""

    pass
